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134 papers · 1 filter
Opacity predictions in plasmas under stellar conditions using deep learning
Djamel Benredjem, Jean-Christophe Pain
The aim of this work is to predict the opacity of plasmas under stellar conditions. We focus on iron and nickel, as these elements have been extensively investigated both theoretic…
Precision spectroscopy of the fine and hyperfine structures of high molecular Rydberg-Stark states: Metrology of molecular hydrogen ions
Ioana Doran, Leon Jeckel, Maximilian Beyer +2
The Stark effect in autoionizing high- Rydberg states decouples the Rydberg electron from the ion core through mixing with core-nonpenetrating high- states. The Ryd…
Quantum study of ultracold atom-ion excitation exchange
Tibor Jónás, Romain Vexiau, Nadia Bouloufa-Maafa +3
The quantum dynamics of ultracold collisions between rubidium atoms and excited metastable strontium ions is treated in the laboratory frame, enlightening the importance of the cou…
The Stark effect in molecular Rydberg states: Calculation of Rydberg-Stark manifolds of H and D including fine and hyperfine structures
Ioana Doran, Leon Jeckel, Maximilian Beyer +2
We present a general theoretical treatment and calculations of the fine and hyperfine structures in the spectra of high- molecular Rydberg states in static uniform electric fiel…
Splitting of the three-body Förster resonance in Rb Rydberg atoms as a measure of dipole-dipole interaction strength
I. I. Ryabtsev, I. N. Ashkarin, I. I. Beterov +4
Three-body Förster resonances controlled by a dc electric field are of interest for the implementation of three-qubit quantum gates with single atoms in optical traps using their l…
Formation of ultracold triatomic molecules by electric microwave association
Baraa Shammout, Leon Karpa, Silke Ospelkaus +2
A theoretical model is proposed for the formation of ultracold ground-state triatomic molecules in weakly bound energy levels. The process is driven by the electric component of a…